jquery real-world demo image cropper - ui.instance undefined

jquery real-world demo image cropper - ui.instance undefined


Hi. Using the code from the demo at...
http://ui.jquery.com/repository/real-world/image-cropper/
..both my testing and the demo page itself error with "ui.instance is
undefined" in firebug.
I am using jquery ui version 1.5.2 but the demo hasn't been working
for a couple of releases in FF or IE.
I bet this worked at one time and wondering if anyone knows what's
changed. What are the correct call back arguments to access the data?
Any clues are appreciated.